2018 HA1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4187368437 ± 1.42e-07
Semi-major axis (a)1.3276878972 AU ± 1.73e-08
Inclination (i)37.69621292° ± 3.57e-05
Long. of Asc. Node (Ω)210.94237373° ± 6.76e-06
Arg. of Perihelion (ω)108.79765777° ± 1.57e-05
Mean Anomaly (M)282.24560231° ± 2.05e-05
Mean Motion (n)0.6442705524°/day ± 1.26e-08
Perihelion dist (q)0.77173606 AU ± 1.88e-07
Aphelion dist (Q)1.88363974 AU ± 1.90e-07
Orbital Period1.52983289 yr ± 3.00e-08
Physical Parameters
H (abs. magnitude)22.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.362″
Uncertainty0
Orbit TypeApollo
MOID0.027010 AU
Observations Used75
Oppositions2
Arc Total2018-2024
First Observation Used2018-04-19
Last Observation Used2024-11-08
Observations (77)
Date Type RA Dec Mag Band Observatory
2018-04-19 07:47:30 C 12 59 29.25 -19 38 52.0 U G96
2018-04-19 07:54:59 C 12 59 28.37 -19 38 19.5 U G96
2018-04-19 08:02:26 C 12 59 27.51 -19 37 47.3 U G96
2018-04-19 08:09:54 C 12 59 26.68 -19 37 15.6 U G96
2018-04-19 09:23:48 C 12 59 18.32 -19 31 57.4 U I52
2018-04-19 09:25:35 C 12 59 18.06 -19 31 50.0 U I52
2018-04-20 01:58:43 C 12 57 33.53 -18 19 18.0 U 807
2018-04-20 02:06:03 C 12 57 32.72 -18 18 45.6 U 807
2018-04-20 02:13:23 C 12 57 31.87 -18 18 13.2 U 807
2018-04-20 04:11:35 C 12 57 19.40 -18 09 57.1 U I52
2018-04-20 04:13:23 C 12 57 19.21 -18 09 48.6 U I52
2018-04-20 04:15:10 C 12 57 19.06 -18 09 39.2 U I52
2018-04-20 22:25:01 C 12 55 20.28 -16 47 48.1 d L01
2018-04-20 22:29:46 C 12 55 19.76 -16 47 25.2 d L01
2018-04-20 22:34:32 C 12 55 19.21 -16 47 03.3 d L01
2018-04-21 05:17:49 C 12 54 36.10 -16 16 00.9 U I52
2018-04-21 05:19:37 C 12 54 35.83 -16 15 52.8 U I52
2018-04-21 05:21:24 C 12 54 35.65 -16 15 44.0 U I52
2018-04-21 05:23:11 C 12 54 35.49 -16 15 36.6 U I52
2018-04-21 21:37:06 C 12 52 49.30 -14 59 23.4 q 595
2018-04-21 21:55:59 C 12 52 47.13 -14 57 52.6 q 595
2018-04-21 22:19:52 C 12 52 44.49 -14 55 59.4 U 204
2018-04-21 22:51:07 C 12 52 40.90 -14 53 30.6 U 204
2018-04-22 07:05:32 C 12 51 46.79 -14 13 53.8 U I52
2018-04-22 07:06:56 C 12 51 46.62 -14 13 45.9 U I52
2018-04-22 07:08:20 C 12 51 46.54 -14 13 39.1 U I52
2018-04-22 07:09:43 C 12 51 46.35 -14 13 32.7 U I52
2018-04-23 03:54:30 C 12 49 31.68 -12 31 44.7 o 291
2018-04-23 03:57:23 C 12 49 31.32 -12 31 29.7 o 291
2018-04-23 04:00:18 C 12 49 31.01 -12 31 15.6 o 291
2018-04-24 03:46:31 C 12 46 54.80 -10 30 58.0 o 691
2018-04-24 04:18:59 C 12 46 50.98 -10 28 11.5 o 691
2018-04-24 04:51:23 C 12 46 47.20 -10 25 25.0 o 691
2018-04-24 05:34:21 C 12 46 42.19 -10 21 45.1 U I52
2018-04-24 05:35:44 C 12 46 42.01 -10 21 37.1 U I52
2018-04-24 05:39:27 C 12 46 41.55 -10 21 18.4 U I52
2018-04-24 05:40:50 C 12 46 41.39 -10 21 11.3 U I52
2018-04-25 05:36:37 C 12 44 03.88 -08 16 11.7 U I52
2018-04-25 05:39:09 C 12 44 03.57 -08 15 58.4 U I52
2018-04-25 05:42:17 C 12 44 03.21 -08 15 41.8 U I52
2018-04-25 05:46:01 C 12 44 02.73 -08 15 22.3 U I52
2018-05-03 07:54:16 C 12 23 11.54 +09 53 01.6 o 291
2018-05-03 08:00:14 C 12 23 10.90 +09 53 35.6 o 291
2018-05-03 08:06:12 C 12 23 10.25 +09 54 09.0 o 291
2018-05-04 07:19:58 C 12 20 47.63 +12 04 57.0 o 291
2018-05-04 07:31:53 C 12 20 46.37 +12 06 03.6 o 291
2018-05-04 07:43:48 C 12 20 45.06 +12 07 09.8 o 291
2018-05-06 04:00:41 C 12 16 20.02 +16 11 32.3 o 711
2018-05-06 04:04:52 C 12 16 19.56 +16 11 54.8 o 711
2018-05-06 04:09:07 C 12 16 19.10 +16 12 18.2 o 711